Language: German

The Schizophrenia Proneness Instrument, Child and Youth version (SPI-CY) has its origin in the basic symptom concept first described by Gerd Huber. Basic Symptoms are subtle, subclinical self-experienced disturbances in drive, stress tolerance, affect, thinking, speech, perception and motor action, which are phenomenologically clearly distinct from (attenuated) psychotic symptoms. They can be present before the first psychotic episode, between and after psychotic episodes, even during psychotic episodes themselves. They are thought to be the most immediate psychological expression of the neurobiological disturbance underlying the development of psychosis – thus the term ‘basic’.